Perpendicular Reference Voltage Lines for Narrow Frame OLED Panels
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Solution Overview
Problem
Current organic light-emitting display panels face challenges in minimizing the space occupied by the peripheral circuit, which hinders the implementation of a narrow frame due to complex and extensive arrangements of signal lines connecting to the driving chip.
Innovation Solution
The organic light-emitting display panel design includes a substrate with strategically arranged transistors, reference voltage lines, and a unique layout where the first and second reference voltage lines extend along perpendicular directions, allowing direct connection to the driving chip without additional connecting lines, thereby minimizing the frame region space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If reference voltage lines are arranged in conventional parallel directions, then connection to driving chip is achieved, but frame region space is excessively occupied
Solution Approach 1:
The patent applies dimensionality change by arranging reference voltage lines in perpendicular directions (first direction and second direction) instead of conventional parallel arrangements. This spatial reconfiguration allows the first reference voltage line to extend along the first direction and the second reference voltage line to extend along the second direction, enabling direct connection to the driving chip without requiring additional connecting lines, thereby reducing frame region space occupation.
Solution Approach 2:
The patent merges the functions of reference voltage lines by configuring them to extend in perpendicular directions, where one reference voltage signal line can extend to the non-display region and be directly connected with the driving chip without an extra connecting line. This consolidation eliminates redundant connection paths and reduces the overall space required in the frame region.
2Reliability
If additional connecting lines are used to connect reference voltage lines to driving chip, then electrical connection is achieved, but frame region space increases
Solution Approach 1:
The patent resolves this contradiction by changing the spatial arrangement of reference voltage lines from parallel to perpendicular directions. The first reference voltage line extends along the first direction and the second reference voltage line extends along the second direction, allowing direct connection to the driving chip without additional connecting lines, thus maintaining electrical connection reliability while minimizing frame region space.
Solution Approach 2:
The patent extracts and eliminates the need for additional connecting lines by directly configuring the reference voltage lines to extend to the driving chip position. By taking out the redundant connecting line component, the design achieves reliable electrical connection with reduced frame region space occupation.
3Area of stationary object
If reference voltage lines extend in perpendicular directions, then direct connection to driving chip is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent addresses manufacturing complexity by implementing perpendicular arrangements of reference voltage lines along first and second directions. This dimensional change enables direct connection to the driving chip without additional connecting lines, reducing frame region space while the perpendicular geometry provides clear fabrication guidelines for manufacturing processes.
Data Source
AI summary
An organic light-emitting display panel is provided. The display panel includes a first driving voltage line arranged on an interlayer insulation layer and electrically connected with a source electrode or drain electrode of a driving transistor, a first reference voltage line arranged on a substrate and configured to extend in a first direction; a second reference voltage line arranged on the substrate and configured to extend in a second direction perpendicular to the first direction. A first electrode of the first switch transistor is electrically connected with the first reference voltage line, and a second electrode of the first switch transistor is electrically connected with a first electrode plate of a capacitor. A first electrode of the second switch transistor is electrically connected with the second reference voltage line, and a second electrode of the second switch transistor is electrically connected with a gate electrode of the driving transistor.